CaratHunter
Plans
Round|Lab Grown|IGI

1.25ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG783641774

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783641774

Diamond specifications and retailer prices

From $614 AUD
$430 USD
As of November 1, 2026
Save $2,181 AUD (78%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,639 AUD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG783641774 or 783641774. Listed at 22 retailers as of November 1, 2026, with a 355% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783641774
Dimensions7.03 × 7.06 × 4.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.03 mm7.06 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783641774
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,639 AUD|Low: $589 AUD|High: $3,639 AUD|Avg: $1,487 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 3, 2026
Retailer 3$614 AUD
Retailer 12$685 AUD
Retailer 10$688 AUD
Retailer 7$761 AUD
Retailer 14$761 AUD
Retailer 18$970 AUD
Retailer 9$1,087 AUD
Retailer 21$1,185 AUD
Retailer 19$1,197 AUD
Retailer 2$1,251 AUD
Retailer 4$1,288 AUD
Retailer 13$1,312 AUD
Retailer 5$1,816 AUD
Retailer 16$1,854 AUD
Retailer 6$2,069 AUD
Retailer 17$2,133 AUD
Retailer 8$2,415 AUD
Retailer 11$2,446 AUD
Retailer 20$2,554 AUD
Retailer 15$2,794 AUD
Brilliant Earth$3,639 AUD

38 data points across 21 retailers

22 retailers$614 AUD to $2,794 AUD

A
Cheapest Retailer
-
$614 AUD
$430 USD
A
Retailer 2
-
$685 AUD
$480 USD
View
Final sale: no returns
A
Retailer 3
-
$688 AUD
$482 USD
View
Retailer 4
-
$761 AUD
$533 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$761 AUD
$533 USD
View
A
Retailer 6
-
$970 AUD
$680 USD
View
A
Retailer 7
-
$1,087 AUD
$762 USD
View
B+
Retailer 8
-
$1,160 AUD
$813 USD
View
B+
Retailer 9
-
$1,185 AUD
View
B+
Retailer 10
-
$1,197 AUD
$839 USD
View
B+
Retailer 11
-
$1,251 AUD
£691 GBP
View
B+
Retailer 12
-
$1,312 AUD
ZAR 14,852 ZAR
View
Retailer 13
-
$1,816 AUD
View
Price last confirmed 25 days ago
B+
Retailer 14
-
$1,854 AUD
View
Retailer 15
-
$2,069 AUD
$1,450 USD
View
Price last confirmed 27 days ago
B
Retailer 16
-
$2,133 AUD
$1,495 USD
View
Retailer 17
-
$2,415 AUD
SGD 2,287 SGD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$2,446 AUD
$1,714 USD
View
Retailer 19
-
$2,492 AUD
$1,746 USD
View
Price last confirmed 21 days ago
B
Retailer 20
-
$2,554 AUD
$1,790 USD
View
B
Retailer 21
-
$2,794 AUD
£1,542 GBP
View
Most Expensive
Brilliant Earth
19018680A · Oct 14
$3,639 AUD
$2,550 USD
View
Price last confirmed 19 days ago
21 more retailers have this diamond
Prices start from $614 AUDSave up to $2,181 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.25ct Round
$614 AUD